The table below shows whether pollution levels recorded at the site you have selected remained within the Government's Air Quality Strategy Objectives in 2012.
For further basic statistics click on the button below, or for more precise statistics, use the Statistics Calculator.

Pollutant

Objective

Was it achieved?

Value

PM10 Particulate

40 ug/m3 as an annual mean

YES

39

PM10 Particulate

50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year

NO

82

PM10 (redundant method)

40 ug/m3 as an annual mean

NO

43

PM10 (redundant method)

50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year

NO

121

Nitrogen Dioxide

200 ug/m3 as a 1 hour mean, not to be exceeded more than 18 times a year

YES

0

Nitrogen Dioxide

40 ug/m3 as an annual mean

NO

44

* Note that all objectives have been calculated using a method defined in 2013.

* Note that results are excluded where analysers have not returned valid data for at least 90% of the year, unless a short-term objective was exceeded.

* Note - all results from TEOM PM10 analysers from 2004 onward are now converted to reference equivalence using the volatile correction method. Results using the old 'TEOM*1.3' method are also shown for comparison where relevant.More information.